egrep "Name|Handlers" /proc/bus/input/devices
-------------------------------
xorg.conf (*Bits taitaa olla jotain tuubaa mutta toimii):
Section "InputDevice"
	Identifier	"MX510"
	Driver		"evdev"
#NOK	Option		"CorePointer"
        Option          "Name"        "Logitech USB-PS/2 Optical Mouse"
#NOK	Option		"Device"	"/dev/input/mice"
  Option          "evBits"  "+1-2"
  Option          "keyBits" "~272-287"
  Option          "relBits" "~0-2 ~6 ~8"
  Option          "Pass"    "3"
EndSection
.
.
.
Section "ServerLayout"
	Identifier	"Default Layout"
  screen 0 "Default Screen" 0 0
	Inputdevice	"Generic Keyboard"
	Inputdevice	"MX510"
EndSection
.
.
.

-------------------------------
In Firefox 3 on Linux,
-------------------------------
the mouse button assignments for Back and Forward have changed, to follow X11 customs. Previous versions of Firefox used buttons 6 and 7 for Back and Forward, respectively. Firefox 3 uses buttons 8 and 9. You can configure Firefox to use 6 and 7 by editing some hidden preferences.

   1. In the Location bar, type about:config, and press EnterReturn.
          * The about:config "This might void your warranty!" warning page may appear. Click I'll be careful, I promise!, to continue to the about:config page. 
   2. In the Filter: box, type mousewheel.horizscroll.withnokey.
   3. Double-click on mousewheel.horizscroll.withnokey.action, set the value to 2, and click OK.
   4. Double-click on mousewheel.horizscroll.withnokey.numlines, set the value to -1, and click OK.
   5. Double-click on mousewheel.horizscroll.withnokey.sysnumlines, which should set the value to false. 

You can now close the about:config page.